Home / 780,105.87-1,076,466.92-440,508.51

Finding the Fourth Proportional to 780,105.87, 1,076,466.92 and 440,508.51

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Solution

The fourth proportional to 780,105.87, 1,076,466.92 and 440,508.51 is: 607,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,105.87 : 1,076,466.92 = 440,508.51 : x
  2. Step 2: Convert to fraction form
    780,105.87/1,076,466.92 = 440,508.51/x
  3. Step 3: Cross multiply
    780,105.87x = 1,076,466.92 × 440,508.51
  4. Step 4: Simplify right side
    780,105.87x = 474,192,836,790.95
  5. Step 5: Solve for x
    x = 474,192,836,790.95/780,105.87
  6. Step 6: Final answer
    x = 607,857.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.